Starting mechanism for multicylinder internal-combustion engines.



O. F. PISGHEDIGK & A. W. KRAHN. v STARTING MECHANISM FOR MULTIOYLINDER INTERNAL COMBUSTION ENGINES. APPLICATION FILED DEC; 26, 1911.

1,086,038. Patented Feb. 3, 1914.

OSCAR F. FISCHEDICK AND ALVIN W. KBAHN, F MILWAUKEE, WISCONSIN.

STARTING MECHANISM FOR MULTICYLINDER INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Feb. 3, 1914.

Application filed December 26, 1911. Serial No. 667,580.

T 0 all whom it may concern Be it known that we, OSCAR F. FISCHE- DICK and ALvIN lV. KRAHN, citizens of the United States, residing at Milwaukee,

county of Milwaukee, and State of lVisconsin, have invented new and useful Improvements in Starting Mechanism for Multicylinder Internal-Combustion Engines, of which the following is a specification.

Our invention relates to improvements in starting mechanism for multi-cylinder in ternal combustion engines.

The object of our' invention is to" provide means for delivering a properly proportioned starting charge of high tension gas to each of the engine cylinders, preparatory to closing an initial circuit of the igniter.

Our invention contemplates the delivery of the starting charge from a Presto-Lite tank, or holder for high tension calcium earbid gas, and as such gas, under heavy compression, is difiic-ult to control, our'invention has in view the provision of mechanism of such character that even an inex perienced operator will not overcharge the cylinders, or permit a discharge of gas from the storage tank, except to the cylinders, as required. Y

In the drawings Figure 1 is a general view indicating the relation of our improved mechanism to a multi cylinder internal combustion engine. Fig. 2 is a detail sectional view of the starting valve mechanism. Fig. 3 is a cross sectional view of the starting valve mechanism, drawn to a plane cutting the outlets of the valve casing. Fig. '4: is a detail view of the valves. a. Fig. 5 is a detail sectional view of a priming cup to which one of the valve casing outlets is connected for the purpose of charging the cylinder.

Like parts are identified by the same reference characters throughout the several views.

The cylinders 1 of an internal combustion englneare prov1ded with priming cups 2 ct ordinary construction, except that each pipes 5 to the priming cups 2 of the respective cylinders 1. A shut off valve is employed at to prevent the delivery of. gas I trom the storage tank 6 to the pipe 7, except when occasion requires the use of the controlling valves.

The valve casing S of the controlling valve is provided with an inlet duct and a series of outlet ports 16. These outlet ports are segmentally arranged in the side wall of the casing 8, said casing having a segmental rib 17-to facilitate coupling the pipes 5 to the casing by means of the coupling members 18. A cup shaped valve 20 is mounted to slide within the casing cavity 21. This valve is provided with a series of ports arranged in a helical line in the wall of the valve and inpositions for successive registry respectively with the ports 16 when this valve 20 moves outwardly in the cavity 21. The valve is provided with an actuating stem 26, which extends through the inner wall of the valve and is provided with a head 27. This end of the-stem is socketed and a needle valve rod is inserted in the socket and secured rigidly therein at 51 near the outer end or base of the socket. The remainder of the socket is of sufficient size to allow a slight deflection of the needle rod, the inner end of which is tapered to form a valve 32 adapted to close the mouth of the inlet duct 15. At the side opposite I that on which the ports 25 are located, the

cup valve is provided with a slot 34. A casing projection 83 enters this slot 34. and serves as a guide for the valve. Said slot is preferably continued, through the end. wall of the cup valve 20, thus allowing gas from the inlet 15 to pass through the slot 34 to the interior of cup valve 20 and through any one of the ports 25, when such port is in registry with its corresponding port 16.

The valve stem 26 extends through the outer end wall of the casing 8, suitable packing being provided at 40. here the valve is used in connection with the driving engines of a motor driven vehicle, it is desirable that it be-guided by foot power, and we have, therefore, provided a push rod 41 having a tread piece 42 at one end, and having its other end el-bowed at 43 and loosely connected with the stem 26. A spring. 44 serves to retract the push rod and automatically close the valves when pressure upon the tread piece 42 is removed.

a convenient position for the application of foot power to the actuating push rod 41.

In operation, when it is desired to start the engine, it is merely necessary to actuate the push rod 41, whereupon the cup shaped valve 20 will move outwardly in the valve cavity 21', the needle valve being simul-' tancously withdrawn from the mouth of duct 15. As the valve 20 moves outwardly, the outermost port 25 will register with one of the outlet ports 16 and permit a discharge of gas to the corresponding engine cylinder through the duct 5 and the cylinder priming cup. The continued movement of valve 20 then closes this port 16 and the next port 25 of the valve 20 will subsequently register with another outlet port 16 and allow another cylinder to receive a charge. This will be continued until the completion of the outward stroke of valve 20,'when all of the cylinders will have received a charge of gas from the tank 6. We

attach great importance to the fact that the for fire will be ignited, thus starting the engine. The gas in the other cylinders may of course be wasted, but the amount is in considerable and by charging each cylinder,

we avoid the necessity of complicated mechanism which would be required to selectively deliver gas to one cylinder only.

lNe claim 4 1. The combination with a multicylinder internal combustion engine, of a valve casing provided with an inlet and a series of segmentally arranged outletports, a cup shaped valve movable longitudinally in said casing, and provided with ports arranged in a helically curved line in the cylindrical wall of the valve and in positions for successive.

registry with said outlet ports, a needle valve connected with the cup shaped valve and seating to close the inlet in one position of adjustment, and an actuating stem connected with the valve.

.2. The combination with a multicylinder internal combustion engine, of a valve casing provided with an inlet and a series of m rlally arranged outlet ports, a cup shaped valve movable longitudin lly in said casing, and provided with ports arranged in a helically curved line in the cylindrical wall of the valve and in positions for successive registry with said outlet ports, a needle valve connected with the cup shaped valve and seating to close the inlet in one position of adjustment, and an actuating stem connected with the valve, together with a push rod loosely linked to said actuating stem.

The combination with a multicylinder internal combustion engine, of a valve casing provided with an inlet and a series of segmentally arranged out-let ports, a cup shaped valve movable longitudinally in said casing, and provided with ports arranged in a helically cureved line in the cylindrical wall of the valve and in positions for successive registry with said outlet ports, a needle valve connected witht-he cup shaped valve and seating to close the inlet in one position of adjustment, and an actuating stem connected with the valve, said casing outlet ports being respectively connectedwith the cylinders of said engine, and said inlet ports having a high pressure tank connected therewith.

l. In a valve mechanism for delivering high tension gases to the cylinders of an internal combustion engine, the combination of a valve casing, a slide valve located therein and a needle valve connected with the slide valve, said casinghaving inlet and outlet ports, and said slide 'alve and casing wall having outlet ports arranged for successivc registry when the valve is actuated.

The combination with a valve casing, of. a valve operating and supporting member provided with a needle supporting socket, and a needle valve seated in said socket, said needle valve being rigidly secured to the in nor end portion of said socket, and the remainder of the socket being of suliieient size to permit lateral movements of said needle, while affording lateral support against injurious flexion of the needle.

6. The combination with a valve casing provided with an inlet and a series of outlets, a. cup shaped slide valve, mounted for longitudinal movement in the casing, and provided with a guideslot in one side wall, aprojection entering said guide slot from the casing and preventing valve rotation, a needle valve connected with the cup shaped valve and controlling the inlet, and valve actuating mechanism for actuating said slide *alve and needle valve,said slide valve being provided with ports adapted for successive registry with the casing. outlets respectively.

7. The combination with a multieylinder internal combustion engine, of a valve casing having a series of outlets operatively connected to the respective cylinders for the delivery of a starting charge thereto, a high tension carbid gas holder connected with said val casing through a suitable duct, a slide val e in the casing, adapted, when actuated, to provide successive deliverythrough the casing outlets, a needle valve controlling the delivery of gas to the casing through said duct, and mechanism for actuating said Valves.

8. The combination with a multi-cylinder internal combustion engine, of a valve casing having a series of outlets operatively connected to the respective cylinders for the delivery of a starting charge thereto, ahigh tension carbid gas holder connected with said valve casing through a suitable duct, a slide valve in the casing, adapted, when actuated, to provide successive delivery ing having a series of outlets operatively through the casing outlets, a .needle valve controlling-the delivery ofgas to the casing through said duct, and mechanism for actuating said valves, said mechanism being adapted for manual operation, and autoinatic retraction to inoperative position.

9. The combination with a multi-cylinder internalcombustion engine, of a Valve casconnected to the respective cylinders for the delivery of'a starting charge thereto, ahigh tension carbid gas holder connected with said valve casing through a suitable duct,

' a slide valve the casing, adapted, when actuated,1 to" provide successive delivery Xthrouglrthe casing outlets, a needle valve controlling the delivery of gas to the casing through said duct, and mechanism for actu- Gopies of this patent may be obtained for ating said valves, said mechanism being provided with a retractive spring normally holding the valves in closed position.

10. A starter valve for internal combustion engines, comprising a case having outlet 40 openings communicating With the respective engine cylinders and'an inlet opening communicating with a source of fluid supply,- Valve mechanism normally closing all of said openings, manually 'operat-ed'means for controlling said valve mechanism to open said openings in succession and automatic means for restoring the valve mechanism to normal position when the manual control is removed from the same.

11. A starter valve for internal combustion engines, comprising a case having outlet openings communicating with the respective engine cylinders and an inlet opening communicating with a source of fluid supply, valve mechanism normally closing all of said openings, manually operated means for controlling said valve mechanism to open said openings insuccession anda spring for restoring the valve mechanism to normal position when the manual control is removed from the same. '5

In testimony wheteofwe afiixour signatures in the presence of two witnesses,

OSCAR F. FISCHEDIGK. ALVIN W, KRAHN.

Witnesses Lnvnnn'rr C. WHEELER, 1; D. BREMER.

five cents each, by addressing the Commissioner of Patents,

washington l). G. 

